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Patented Oct. 9, 1945 Hayes Industries, Inc.

v, poration'lof Michigan Jackson. Mich., 'a vcor- Y Application June 17, 1943, Seraing-.491,176

The present invention relates to Vbrake construction and more particularly to a detail thereof constituting a combination spacing member and hydraulic uid supplying nozzle for association with dual brakes.

Dual brake structures of the hydraulic brake type are provided with rims for supporting the hydraulic expander tubes. The rims are supported by radially inwardly extending webs which are separated by spacers. A nozzle for conducting hydraulic fluid from a source to the expander tube is usually supported in some suitable manner from the supporting webs. According to the present invention, a unitary casting constituting a spacer for one circumferential section of the rim supporting web combined with a hydraulic iluid supplying nozzle is provided.

An object of the invention is to provide a com- .bination spacer and hydraulic fluid conducting nozzle for dual brake expander tube rims.

Another object of the invention is to provide a casting having spacing portions for dual hydraulic brake expander tube rims and supported thereby providing a hydraulic fluid nozzle.

These and other objects residing in the ar-y CII rangement, combination and construction of the parts will be apparent from the following specication when taken with the accompanying drawing, in which Fig. 1 is a vertical section of va part of a wheel having a dual brake associated therewith, and

Fig. 2 is a section on the line II-II of Fig. 1.

Referring particularly to the drawing, the reference character I represents an airplane wheel having a dual brake structure generally indicated by the reference character 2. The wheel I is journaled upon an axle, not shown, in a conventional manner, the axle being supported by the landing gear :3. The landing gear 3 has secured thereto the webs 4 which support rims 5 respectively in which are arranged hydraulic brake expander tubes 6. Supported also by the rims 5 are brake blocks 'I arranged to be urged outwardly into braking relation with the brake drum 8 which is secured in some suitable manner to the wheel I.

The webs 4 are brought into contact adjacent the central portions of the wheel for attachment to the landing gear 3. The outer portions of the webs 4 are flared outwardly to provide the proper spacing of the rims l5. The outer portions of the webs 4 are held in a lixed spaced relation by spacing tubes 9 spacing the webs 4 and through which extends bolts I 9. The specific eX- pander tube 6 and brake block construction 'I 5 claims. (C1. 18s-ml may take any suitable form, but preferably is constructed in accordance with the disclosure of my copending application Serial No. 275.355led May 24, 1939, now Patent No. 2,350,038, issued May 30, 1944.

The'spacing tubes 9 serve to space the outer portions of the webs 4 in all positions with the exception of the two positions shown at thev upper part of Fig. 1, and shown particularly in cross section in Fig. 2. In these positions the spacing is accomplished by a. casting I5. The casting I5 is provided with a pair of tubular spacers I6 spacing the outer portions of the webs 4 and through which extends bolts I1 rigidly clamping the outer portions of the Webs 4 and the tubular spacing members I6 together'. As viewed in Fig. 2, there extend generally inwardly a pair of brackets I8 which meet at and are secured to a nozzle I9. vThe nozzle I9 extends transversely of the wheel as shown particularly in Fig. 1, and is provided with y.a connecting end 20 for connecting the same to a suitable source of hydraulic fluid.

Each of the hydraulic tubes 6 is provided with ya tubular stem 6V communicating with the interior thereof. Each stem `Ii extends downwardly into the nozzle I9 and is provided with a iluid tight connection thereof by means of stullng boxes 2|. i

The castings I5 are particularly adapted to structures of the character described in that they not only serve as spacers for the expander tube rim webs, but also eliminate the necessity of providing any further connection between the connecting nozzle I9 and the webs 4. They vhave the further advantage that they reduce the numloer of parts of the brake structure.

Having thus described my invention, what I desire to secure by Letters Patent and claim is:

1. In a brake construction, a pair of adjacent rims each having an expander tube associated therewith, a torque flange structure supporting each of said rims, said torque flange structures i being spaced at their outer portions and in juxtaposition at their inner portions and separate means for spacing and supporting said structures in fixed spaced relation ai; their outer portions, said means having an integral member having a spacing portion for said structures to which said structures are secured and a nozzle portion for distributing fluid from a source to each of said tubes for expanding said tubes.

2. In a brake construction, a pair of adjacent rims havingexpander tubes associated therewith, a torque ange structure supporting each of said rims, said torque flange structures being spaced communicating with the interior thereof, and at their outer portions and in juxtaposition at wherein means are provided connecting said their inner portions and separate means for n stems to said nozzle.

spacing and supporting said structures in a Xed 5. In a brake construction a pair of adjacent spaced relation at their outer portions, said means 5 rims having expander tubes associated therewith, comprising a pair of spacing portions located to a tubular stem projecting from each of said tubes abut opposed outer portions of said ange structhrough said rims respectively, a structure supture for spacingsaid structures to lwhich portions porting .each ofsaid rims, means for spacing and said structures are secured and a nozzle portion supportinggsaid structures in a nxed spaced relasupported by brackets projecting from said spac- 10 tion, said means comprising a pair of integral ing portion for distributing fluid from a sourceto f members having spacing portions for said struceach of said tubes for expanding said tubes. tures to which said structures are secured, a noz- 3. The invention as defined in claim 1 wherein; ljizle portion for distributing uid from a source each of said tubes is provided witna tubular stern Y Y to eachpf Lsaid tubes for expanding said tubes, communicating with theujnterior '.tnerepfgiand 15 saidjjtubular stems prcjectingintc communicating wherein means are provided connectingsaid stems assiatunfwfh" Said nozzle, and brackets PrO- tosaid nozzle. ""jek'z'ting from said spacing portions to and sup- 4. The invention as definedfnclaimxmerein l prtingasadnzzle.

each of said tubes is provided with a tubylarstem CHARLES HOILERITH. 

